Gonococcal pilin variation is thought to allow immune evasion and change the adherence properties of the pilus. We have examined the process of pilin antigenic variation in human volunteers inoculated with strain FA1090. Our data show that pilin variation occurred throughout the process of infection, that at each time sampled after inoculation multiple pilin variants were present, and that later pilin variants appear to be recombinants between previously expressed genes and the silent storage pilin copies. Thus, during infection a large repertoire of proteins are available to the population to help avoid immune responses, to provide pili with varying functions, and to transmit to a new host.
H S Seifert, C J Wright, A E Jerse, M S Cohen, J G Cannon
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Lamb ER, Criss AK |
bioRxiv | 2025 |
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Broadie CO, Telchy AI, Baines AT, Dillard JP, Nicholas RA, Williams D |
Current microbiology | 2025 |
Terminal complement complexes with or without C9 potentiate antimicrobial activity against Neisseria gonorrhoeae.
Lamb ER, Criss AK |
mBio | 2025 |
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mSphere | 2025 |
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Andreea Waltmann, Jacqueline Balthazar, Afrin Begum, Nancy Hua, Ann Jerse, William Shafer, Marcia Hobbs, Joseph Duncan |
PLoS pathogens | 2024 |
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2024 | |
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Frontiers in immunology | 2023 |
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Human vaccines | 2023 |
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The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie médicale / AMMI Canada | 2021 |
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Neisseria gonorrhoeae: Methods and Protocols
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2019 | |
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PLoS pathogens | 2019 |
A Double-Strand Break Does Not Promote Neisseria gonorrhoeae Pilin Antigenic Variation
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Journal of bacteriology | 2019 |
Transcriptional initiation of a small RNA, not R‐loop stability, dictates the frequency of pilin antigenic variation in Neisseria gonorrhoeae
LL Prister, EA Ozer, LA Cahoon, HS Seifert |
Molecular Microbiology | 2019 |
PacBio Amplicon Sequencing Method To Measure Pilin Antigenic Variation Frequencies of Neisseria gonorrhoeae
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mSphere | 2019 |
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Human vaccines | 2019 |
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Nature Reviews Microbiology | 2018 |
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Molecular Microbiology | 2018 |
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Frontiers in immunology | 2018 |
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mSystems | 2017 |
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X Ren, DA Eccles, GA Greig, J Clapham, NE Wheeler, S Lindgreen, PP Gardner, JK MacKichan, PJ Turnbaugh |
mSystems | 2017 |
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Scientific Reports | 2017 |
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CN Cornelissen |
Pathogens and Disease | 2017 |
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CL Swain, DR Martin, D SIM, TW Jordan, JK Mackichan |
Epidemiology and Infection | 2017 |
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Epidemiology and Infection | 2017 |
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JL Edwards, MP Jennings, MA Apicella, KL Seib |
Critical Reviews in Microbiology | 2016 |
The Pilin N-terminal Domain Maintains Neisseria gonorrhoeae Transformation Competence during Pilus Phase Variation
KP Obergfell, HS Seifert, L Søgaard-Andersen |
PLoS genetics | 2016 |
Analyzing Neisseria gonorrhoeae Pilin Antigenic Variation Using 454 Sequencing Technology
E Rotman, DM Webber, HS Seifert, VJ DiRita |
Journal of bacteriology | 2016 |
Seminal Plasma Promotes Neisseria gonorrhoeae Aggregation and Biofilm Formation
MT Anderson, L Byerly, MA Apicella, HS Seifert, A Becker |
Journal of bacteriology | 2016 |
MetQ of Neisseria gonorrhoeae Is a Surface-Expressed Antigen That Elicits Bactericidal and Functional Blocking Antibodies
EA Semchenko, CJ Day, KL Seib, SM Payne |
Infection and immunity | 2016 |
Neisseria gonorrhoeae Elicits Extracellular Traps in Primary Neutrophil Culture While Suppressing the Oxidative Burst
CW Gunderson, HS Seifert |
mBio | 2015 |
Selection for a CEACAM Receptor-Specific Binding Phenotype during Neisseria gonorrhoeae Infection of the Human Genital Tract
A Sintsova, H Wong, KS MacDonald, R Kaul, M Virji, SD Gray-Owen, RP Morrison |
Infection and immunity | 2015 |
Mobile DNA in the pathogenic Neisseria
Kyle P Obergfell, H Steven Seifert |
Microbiology spectrum | 2015 |
Neisseria gonorrhoeae MutS Affects Pilin Antigenic Variation through Mismatch Correction and Not by pilE Guanine Quartet Binding
E Rotman, HS Seifert, RL Gourse |
Journal of bacteriology | 2015 |
The Gonococcal NlpD Protein Facilitates Cell Separation by Activating Peptidoglycan Cleavage by AmiC
EA Stohl, JD Lenz, JP Dillard, HS Seifert, VJ DiRita |
Journal of bacteriology | 2015 |
Mobile DNA III
NL Craig, M Chandler, M Gellert, AM Lambowitz, PA Rice, SB Sandmeyer |
Mobile DNA III | 2015 |
Mobile DNA in the Pathogenic Neisseria
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Microbiology spectrum | 2015 |
The Genetics of Neisseria Species
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Annual Review of Genetics | 2014 |
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mBio | 2014 |
Lipid A’s Structure Mediates Neisseria gonorrhoeae Fitness during Experimental Infection of Mice and Men
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mBio | 2013 |
Assembly of NADPH Oxidase in Human Neutrophils Is Modulated by the Opacity-Associated Protein Expression State of Neisseria gonorrhoeae
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Infection and immunity | 2013 |
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Encyclopedia of Life Sciences | 2013 |
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LM Ball, AK Criss |
Journal of bacteriology | 2013 |
Phase Variation Leads to the Misidentification of a Neisseria Gonorrhoeae Virulence Gene
MT Anderson, HS Seifert, NE Freitag |
PloS one | 2013 |
Type IV Pilin Proteins: Versatile Molecular Modules
CL Giltner, Y Nguyen, LL Burrows |
Microbiology and molecular biology reviews : MMBR | 2012 |
A bacterial siren song: intimate interactions between Neisseria and neutrophils
AK Criss, HS Seifert |
Nature Reviews Microbiology | 2012 |
Neisseria gonorrhoeae Pilus Attenuates Cytokine Response of Human Fallopian Tube Explants
L Velasquez, K García, F Morales, JE Heckels, P Orihuela, PI Rodas, M Christodoulides, H Cardenas |
Journal of Biomedicine and Biotechnology | 2012 |
Neisseria gonorrhoeae-Mediated Inhibition of Apoptotic Signalling in Polymorphonuclear Leukocytes
A Chen, HS Seifert, JN Weiser |
Infection and immunity | 2011 |
Testing the vaccine potential of PilV, PilX and ComP, minor subunits of Neisseria meningitidis type IV pili
A Cehovin, JS Kroll, V Pelicic |
Vaccine | 2011 |
The Pathobiology of Neisseria gonorrhoeae Lower Female Genital Tract Infection
JL Edwards, EK Butler |
Frontiers in microbiology | 2011 |
Experimental Gonococcal Infection in Male Volunteers: Cumulative Experience with Neisseria gonorrhoeae Strains FA1090 and MS11mkC
MM Hobbs, PF Sparling, MS Cohen, WM Shafer, CD Deal, AE Jerse |
Frontiers in microbiology | 2011 |
Focusing homologous recombination: pilin antigenic variation in the pathogenic Neisseria
LA Cahoon, HS Seifert |
Molecular Microbiology | 2011 |
Tropical Infectious Diseases: Principles, Pathogens and Practice
TB Nutman, JW Kazura |
Tropical Infectious Diseases: Principles, Pathogens and Practice | 2011 |
Genotypic and Phenotypic Modifications of Neisseria meningitidis after an Accidental Human Passage
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PloS one | 2011 |
Purification and Characterization of the RecA Protein from Neisseria gonorrhoeae
EA Stohl, MC Gruenig, MM Cox, HS Seifert, C Mayer |
PloS one | 2011 |
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Vaccine | 2010 |
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MW Russell, J Mestecky |
Immunological Investigations | 2010 |
The DNA binding activity of the Neisseria gonorrhoeae LexA ortholog NG1427 is modulated by oxidation
PO Schook, EA Stohl, AK Criss, HS Seifert |
Molecular Microbiology | 2010 |
DNA Uptake Sequence-Mediated Enhancement of Transformation in Neisseria gonorrhoeae Is Strain Dependent
PM Duffin, HS Seifert |
Journal of bacteriology | 2010 |
Mismatch Correction Modulates Mutation Frequency and Pilus Phase and Antigenic Variation in Neisseria gonorrhoeae
AK Criss, KM Bonney, RA Chang, PM Duffin, BE LeCuyer, HS Seifert |
Journal of bacteriology | 2010 |
Genetic Characterization of the Nucleotide Excision Repair System of Neisseria gonorrhoeae
BE LeCuyer, AK Criss, HS Seifert |
Journal of bacteriology | 2010 |
Opacity Proteins Increase Neisseria gonorrhoeae Fitness in the Female Genital Tract Due to a Factor under Ovarian Control
JG Cole, NB Fulcher, AE Jerse |
Infection and immunity | 2010 |
Resistance ofNeisseria gonorrhoeaeto non-oxidative killing by adherent human polymorphonuclear leucocytes
AK Criss, BZ Katz, HS Seifert |
Cellular Microbiology | 2009 |
ksgA mutations confer resistance to kasugamycin in Neisseria gonorrhoeae
PM Duffin, HS Seifert |
International Journal of Antimicrobial Agents | 2009 |
Pilin gene variation in Neisseria gonorrhoeae : reassessing the old paradigms
SA Hill, JK Davies |
FEMS Microbiology Reviews | 2009 |
Pilin gene variation in Neisseria gonorrhoeae: reassessing the old paradigms
Stuart A Hill, John K Davies |
FEMS Microbiology Reviews | 2009 |
Opa + and Opa − Isolates of Neisseria meningitidis and Neisseria gonorrhoeae Induce Sustained Proliferative Responses in Human CD4 + T Cells
AR Youssef, M van der Flier, S Estevão, NG Hartwig, P van der Ley, M Virji |
Infection and immunity | 2009 |
Pilin Antigenic Variation Occurs Independently of the RecBCD Pathway in Neisseria gonorrhoeae
RA Helm, HS Seifert |
Journal of bacteriology | 2009 |
Neisseria gonorrhoeaesuppresses the oxidative burst of human polymorphonuclear leukocytes
AK Criss, HS Seifert |
Cellular Microbiology | 2008 |
Transposon Mutagenesis Identifies Sites Upstream of the Neisseria gonorrhoeae pilE Gene That Modulate Pilin Antigenic Variation
KA Kline, AK Criss, A Wallace, HS Seifert |
Journal of bacteriology | 2007 |
Functional Consequences of Sequence Variation in Bundlin, the Enteropathogenic Escherichia coli Type IV Pilin Protein
PJ Fernandes, Q Guo, MS Donnenberg |
Infection and immunity | 2007 |
Loss of both Holliday junction processing pathways is synthetically lethal in the presence of gonococcal pilin antigenic variation
EV Sechman, KA Kline, HS Seifert |
Molecular Microbiology | 2006 |
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AK Criss, HS Seifert |
Cellular Microbiology | 2006 |
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2006 | |
Neisseria gonorrhoeae DNA Recombination and Repair Enzymes Protect against Oxidative Damage Caused by Hydrogen Peroxide
EA Stohl, HS Seifert |
Journal of bacteriology | 2006 |
Neisseria gonorrhoeae kills carcinoembryonic antigen-related cellular adhesion molecule 1 (CD66a)-expressing human B cells and inhibits antibody production
M Pantelic, YJ Kim, S Bolland, I Chen, J Shively, T Chen |
Infection and immunity | 2005 |
The transcriptome response of Neisseria gonorrhoeae to hydrogen peroxide reveals genes with previously uncharacterized roles in oxidative damage protection
EA Stohl, AK Criss, HS Seifert |
Molecular Microbiology | 2005 |
The frequency and rate of pilin antigenic variation in Neisseria gonorrhoeae
AK Criss, KA Kline, HS Seifert |
Molecular Microbiology | 2005 |
The PilC adhesin of the Neisseria type IV pilus - binding specificities and new insights into the nature of the host cell receptor
M Kirchner, TF Meyer |
Molecular Microbiology | 2005 |
A real-time semi-quantitative RT-PCR assay demonstrates that the pilE sequence dictates the frequency and characteristics of pilin antigenic variation in Neisseria gonorrhoeae
MS Rohrer, MP Lazio, HS Seifert |
Nucleic Acids Research | 2005 |
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JP Nataro, PS Cohen, HL Mobley, JN Weiser |
2005 | |
Mutation of the priA Gene of Neisseria gonorrhoeae Affects DNA Transformation and DNA Repair
KA Kline, HS Seifert |
Journal of bacteriology | 2005 |
Analysis of the Piv Recombinase-Related Gene Family of Neisseria gonorrhoeae
EP Skaar, B LeCuyer, AG Lenich, MP Lazio, D Perkins-Balding, HS Seifert, AC Karls |
Journal of bacteriology | 2005 |
Role of the Rep Helicase Gene in Homologous Recombination in Neisseria gonorrhoeae
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Clinical microbiology reviews | 2004 |
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Microbiology | 2002 |
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Principles of Bacterial Pathogenesis | 2001 |
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Annual Review of Cell and Developmental Biology | 2000 |
Iron availability regulates DNA recombination in Neisseria gonorrhoeae
CD Serkin, HS Seifert |
Molecular Microbiology | 2000 |
A homologue of the recombination-dependent growth gene, rdgC, is involved in gonococcal pilin antigenic variation
IJ Mehr, CD Long, CD Serkin, HS Seifert |
Genetics | 2000 |
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Bacterial Invasion into Eukaryotic Cells
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Molecular Microbiology | 1999 |
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TL Norris, AJ Bäumler |
Proceedings of the National Academy of Sciences | 1999 |
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Gene | 1999 |
Experimental Gonococcal Genital Tract Infection and Opacity Protein Expression in Estradiol-Treated Mice
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Infection and immunity | 1999 |
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Journal of bacteriology | 1998 |
Comparisons between Colony Phase Variation of Neisseria gonorrhoeae FA1090 and Pilus, Pilin, and S-Pilin Expression
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